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FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES 43 Sheets-Sheet 9 Filed March 3, 1944 INVENTORS JOHN T DAVIDSON PAUL. H.W|LL|AMS LAURENCE N LEHMAN 334 3 3 335 JESSER smcsn JAMES H, CRAWFORD HERMAN F SADGEBURY THE/RATTORNEY HINES June 1, 1948. J. T. DAVIDSON ETAL FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MAC 43 Sheets-Sheet 10 Filed March 3, 1944 IN VENTORS JOHN T. DAVIDSON PAUL H. WILLIAMS LAURENCE N,LEHMAN JESSE R. GANGER JAMES H. CRAWFORD 8 HERMAN F. SAGEBURY THE/l? AT TOR/V5) June 1, 1948. J. T. DAVIDSON EI'AL FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES 43 Sheets-Sheet 11 Filed March 3, 1944 u m r r N .2. in 0mm 2 mm mum lNVE/VTORS JOHN T DAVIDSON PAULH.WILLIAMS LAURENCE NLEHMAN JESSE R. GANGER JAMES HCRAWFORD a HERMAN F. SADGEBURY THE/R ATTORNEY q n & EM fim wai of,

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FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES Filed March 15, 1944 43 Sheets-Sheet 14 INVENTORS JOHN T. DAVDSON PAUL H. WILLIAMS LAURENCE N. LEHMAN JESSE R. GANGER JAMES Hv CRAWFORD 8 H ERMAN F. SADGEBURY THE R ATTmNEY June 1, 1948. J. T. DAVIDSON ETAL FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES 43 Sheets-Sheet 15 Filed March 3, 1944 INVENTORS JOHN T. DAVIDSON PAUL H.WILLIAMS LAURENCE N. LEHHAN JESSE R. GANGER JAMES H.CRAWFORD 8 HERMAN F. SADGEBURY THE ll? ATTORNEY June 1948. J. T. DAVIDSON ETAL 2,442,402

FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES Filed March 5, 1944 43 Sheets-Sheet 16 INVENTORS JOHN T. DAVIDSON PfiUL H. WILLIAMS LAURENCE N. LEHMAN JESSE R.GANGER JAMES H. CRAWFORD 8 HERMAN F.5ADGEBURY THE 1/? .4 T TOR/V5 Y June 1, 1948. J, DAVlDSON r 2,442,402

FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES Filed March 3, 1944 415 Sheets-Sheet 17 FIG.45

ENGAGE SUBTRACT SUB TOTAL 8 TOTAL,

TAKE UP l b. 586 ENGAGE ADD JOHN T. oavmsou PAUL H. WILLIAMS 5 6 JAMESH.CRAWFORO a HERMAN F. swcsaumr mseusmsz SUBTRAGT LNJRENCEN. LEHMAN BY M . 6 TOTAL INVENTORS 586 3 HOME msfiusacs A00 ess R. SANGER 8 SUB TOTAL.

THEIR ATTORNEY June 1943- J. T. DAVIDSON EI'AL 2,442,402-

FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES Filed March :5, 1944 4a Sheets-Sheet 1B FIG.46

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INVENTORS JOHN T. DAVIDSON PAUL H.WILLIAM5 LAURENCE N.LEHMAN JESSE R. GANGER JAMES H. CRAWFORD G HERMAN F. SADGEBURY THE/f? A 7' TORNE' Y June 1, 1948. J. T. DAVIDSON ETAL FORWARD AND REVERSE TABULATING MECHANISM FOR ACCOUNTING MACHINES 43 Sheets-Sheet 19 Filed March 3, 1944 INVENTORS JOHN T DAVDSON PAUL HWILLIQHS LAURENCE N.LEHMAN JESSE F GANGER JAMES H.CRAWFORD 8- HERMAN ESADGEBURY 8* m HE/F? AT TOR/V5 Y June 1, 1948. J. T. DAVIDSON EI'AL 2,442,402

FORWARD AND REVERSE TABULATING MECHANISM FOR ACCUUNTING MACHINES Filed March 3, 1944 43 Sheets-Sheet 20 01 D It) INVENTORS JOHN T DAVIDSON PAUL H. WILLIAMS LAURENCE N.LEHMAN JESSE R.GANGER JAMES H.GRAWFORD B HERMAN F. SADGEBURY QM/M THEIR ATTORNEY FIG.53 

